Scalala 绘图：编译错误

发布于 2024-11-08 11:22:37 字数 1044 浏览 4 评论 0原文

我正在尝试实现这个问题的答案：https://stackoverflow.com/questions/3704647/can-您推荐一个用于 scala 的图表库/3704974#3704974

我已从 git hub 下载并编译了 Scalala，并将 scalala_2.8.1-1.0.0.RC2-SNAPSHOT.jar 放入我的 lib 文件夹（我正在使用 SBT 进行构建）。这是代码：

import scalala.library.Plotting
object ScalalaTest extends Application
{

  val x = Plotting.linspace(0,1);
}

我收到以下错误：

[error] /src/main/scala/ScalalaTest.scala:6: value linspace is not a member of object scalala.library.Plotting
[error]   val x = Plotting.linspace(0,1);
[error]                    ^
[error] one error found

看起来我的 scala 编译器识别了 scalala 包，但无法识别 Plotting 的成员（我已经尝试过其他除了linspace）。这很奇怪，因为根据Scalala API，linspace< /code> 是 Plotting 的成员。

原文

I'm trying to implement the answer to this question: https://stackoverflow.com/questions/3704647/can-you-recommend-a-charting-library-for-scala/3704974#3704974

I've downloaded and compiled Scalala from the git hub and placed the scalala_2.8.1-1.0.0.RC2-SNAPSHOT.jar in my lib folder (I'm using SBT to do my build). Here's the code:

import scalala.library.Plotting
object ScalalaTest extends Application
{

  val x = Plotting.linspace(0,1);
}

I'm getting the following error:

[error] /src/main/scala/ScalalaTest.scala:6: value linspace is not a member of object scalala.library.Plotting
[error]   val x = Plotting.linspace(0,1);
[error]                    ^
[error] one error found

It looks like my scala compiler recognizes the scalala package but doesn't recognize members of Plotting (I've tried others besides linspace). This is strange because according to the Scalala API, linspace is a member of Plotting.

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沙与沫 2024-11-15 11:22:37

这曾经有效，而且很好很优雅 - 似乎当前方式是：

val x = DenseVector.range(0,100) / 100.0;
plot.hold = true
plot(x, x :^ 2)
plot(x, x :^ 3, '.')
xlabel("x axis")
ylabel("y axis")
saveas("lines.png")

这需要包括：

import scalala.tensor.dense.DenseVector
import scalala.library.Plotting._

SBT 依赖项是：

  val scalaToolsSnapshots = "Scala Tools Snapshots" at "http://scala-tools.org/repo-snapshots/"
  val ScalaNLPMaven2 = "ScalaNLP Maven2" at "http://repo.scalanlp.org/repo/"
  val ondex = "ondex" at "http://ondex.rothamsted.bbsrc.ac.uk/nexus/content/groups/public/"

  val scalala = "org.scalala" %% "scalala" % "1.0.0.RC2-SNAPSHOT"

That used to work and was nice and elegant - it seems the current way is:

val x = DenseVector.range(0,100) / 100.0;
plot.hold = true
plot(x, x :^ 2)
plot(x, x :^ 3, '.')
xlabel("x axis")
ylabel("y axis")
saveas("lines.png")

This needs includes:

import scalala.tensor.dense.DenseVector
import scalala.library.Plotting._

The SBT dependencies are:

  val scalaToolsSnapshots = "Scala Tools Snapshots" at "http://scala-tools.org/repo-snapshots/"
  val ScalaNLPMaven2 = "ScalaNLP Maven2" at "http://repo.scalanlp.org/repo/"
  val ondex = "ondex" at "http://ondex.rothamsted.bbsrc.ac.uk/nexus/content/groups/public/"

  val scalala = "org.scalala" %% "scalala" % "1.0.0.RC2-SNAPSHOT"

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